BAJA Humble Overdrive Special 230318 9v amplifier/overdrive  [documentation]

Original effects with schematics, layouts and instructions, freely contributed by members or found in publications. Cannot be used for commercial purposes without the consent of the owners of the copyright.
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bajaman
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Post by bajaman »

Based on that famous Californian amplifier designer's overdrive special #124 with the 1988 skyline EQ mods fitted - the Baja Humble Overdrive Special in 9v pedal friendly format - not built or fine tuned or verified yet as I am waiting on some enclosures. I will probably use a 1590 BB enclosure for this one with two footswitches. I may also tweak the gain structure once I have built it so expect some revised schematic and layout possibly later in this thread. In the meantime, here are the schematics and vero layouts for those who would like to build it. Hope it works well and you enjoy it :wink:
cheers
bajaman
Baja Dumble ODS #124 amplifier overdrive 9v 230318.GIF
Baja Humble ODS vero layout.png
Baja Humble ODS vero cuts.png
Baja Dumble ODS #124 amplifier overdrive 9v 230318 parts not fitted on vero.GIF
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bajaman
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Post by bajaman »

update - I decided to leave out the Master Volume control and instead used a 100k resistor in it's place - here is the updated vero and a verified working build :wink:
I used a larger than the 1590BB enclosure to avoid using two lines of control knobs.
IMG_3538.JPG
Baja Humble ODS vero layout no master.png
Baja Dumble ODS #124 amplifier overdrive 9v no master volume rev 1 220318.GIF
IMG_3539.JPG
IMG_3540.JPG
IMG_3541.JPG
cheers
bajaman

ps: SUNN Model T is next :wink:
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HEAD
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Post by HEAD »

bajaman wrote:
ps: SUNN Model T is next :wink:
Any news on that? :)
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Cub
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Post by Cub »

HEAD wrote:
bajaman wrote: ps: SUNN Model T is next :wink:
Any news on that? :)
Ooh, fancy that with a Rat and a Muff in front of it! :mrgreen:
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HEAD
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Post by HEAD »

Cub wrote:
HEAD wrote:
bajaman wrote: ps: SUNN Model T is next :wink:
Any news on that? :)
Ooh, fancy that with a Rat and a Muff in front of it! :mrgreen:
Stoner rock heaven that would be. :secret:
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Post by Carnageboy »

bajaman wrote: ↑25 Mar 2018, 05:16 ps: SUNN Model T is next :wink:
Sorry for the necro post, but has there been any posts about a Baja SUNN Model T?

My searches come back negative 😕
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miesdevries
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Post by miesdevries »

I am very interested in how this pedal feels and sounds.
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Post by ding127063 »

There is an error in IC3a in the circuit diagram. It should be TL062
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